Convert python functions to argparse objects
Project description
func2argparse
Converts annotated python functions to argparsers.
func2argparse uses type hints and default values in function signatures and combines them together with the docstring of the function to create an argument parser out of it.
Choices for arguments are taken from the docstrings as demonstrated in the example below.
Boolean arguments must always be default False
.
Documentation & Installation
pip install func2argparse
Examples
from pathlib import Path
def foo(
x: int,
y: Path,
z: int = 54,
w: list[str] = ("hey", "ho"),
k: str = "choice1",
ll: list[int] = None,
flg: bool = False,
lb: list[bool] = True,
):
"""This is a test function
Parameters
----------
x : int
First arg
y : Path
Second arg
z : int
Third arg
w : list[str]
Fourth arg.
Multiline documentation
k : str, choices=("choice1", "choice2")
Fifth arg
ll : list[int]
This is an empty list
flg : bool
Set to True to do something
lb : list[bool]
A list of boolean values
Examples
--------
>>> foo()
"""
print(locals())
from func2argparse import func_to_argparser
parser = func_to_argparser(foo, exit_on_error=False)
parser.print_help()
usage: This [-h] --x X --y Y [--z Z] [--w W [W ...]] [--k {choice1,choice2}] [--ll LL [LL ...]] [--flg] [--lb LB [LB ...]]
options:
-h, --help show this help message and exit
--x X, -x X First arg (default: None)
--y Y, -y Y Second arg (default: None)
--z Z, -z Z Third arg (default: 54)
--w W [W ...], -w W [W ...]
Fourth arg. Multiline documentation (default: ('hey', 'ho'))
--k {choice1,choice2}, -k {choice1,choice2}
Fifth arg (default: choice1)
--ll LL [LL ...], -l LL [LL ...]
This is an empty list (default: None)
--flg, -f Set to True to do something (default: False)
--lb LB [LB ...], -lb LB [LB ...]
A list of boolean values (default: True)
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